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Solar-driven H_(2)O_(2)production by S-scheme heterojunction photocatalyst

Chinese Journal of Catalysis 2025年第5期72卷 24-47页

作者： Han Li Wang Wang Kaiqiang Xu Bei Cheng Jingsan Xu Shaowen Cao School of Automotive Materials Hubei University of Automotive TechnologyShiyan 442020HubeiChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Hubei Technology Innovation Center for Advanced Composites Wuhan University of TechnologyWuhan 430070HubeiChina School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Chemistry and Physics&Centre for Materials Science Queensland University of TechnologyBrisbaneQueensland 4001Australia

Hydrogen peroxide(H_(2)O_(2)),as an essential and green chemical,is extensively used in energy and environmental ***,the production of H_(2)O_(2)primarily relies on the anthraquinone method,which is an energy-intensive method involving multi-step reactions,producing harmful by-product ***-driven H_(2)O_(2)production,an alternative route for H_(2)O_(2)generation,is a green and sustainable technology since it only utilizes water and oxygen as ***,the rapid recombination of charge carriers as well as insufficient redox capability limit the photocatalytic H_(2)O_(2)production *** step-scheme(S-scheme)heterojunction photocatalysts has been regarded as an effective strategy to address these drawbacks because it not only achieves spatially separated charge carriers,but also preserves redox capability of the photocatalytic *** paper covers the recent advances of S-scheme heterojunction photocatalysts for H_(2)O_(2)production in terms of basic principles,characterization techniques,and preparation ***,the mechanism and advantages of S-scheme heterojunction for photocatalytic H_(2)O_(2)generation are systematically *** recent S-scheme heterojunction designs,including inorganic-organic heterojunction,inorganic-inorganic heterojunction,and organic-organic heterojunction,are ***,the challenges and research directions of S-scheme photocatalysts for H_(2)O_(2)generation are presented.

关键词： Step-scheme heterojunction H_(2)O_(2)photosynthesis Charge migration mechanism Solar conversion

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Influences of particle size and composition on the hydrolysis behavior of MgO·nAl2O3 spinel

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Ceramics International 2025年

作者： Cao, Mengying Tu, Guangsheng Huang, Qing Liao, Jiaxing Jing, Zhengyang Chen, Bowen Tu, Bingtian Wang, Hao Wang, Weimin Fu, Zhengyi State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Wuhan430070 China Hubei Longzhong Laboratory Hubei Xiangyang441000 China

The hydrolysis characteristic of MgO·nAl2O3 powders poses significant challenges for fabricating large-sized and complex-shaped transparent ceramic components. In this work, the hydrolysis behavior of MgO·nAl2O3 powders with designed particle size and chemical composition was systematically investigated. The results ascertained that coarse MgAl2O4 powders synthesized at higher temperatures exhibited reduced surface-active sites, and alumina-rich spinel surfaces exposed decreased unsaturated Mg atoms that catalyze water dissociation. The OH− concentrations in MgAl2O4-coarse and MgO·1.8Al2O3 suspensions were 63 % and 32 % of that in MgAl2O4-fine one, respectively, indicating an effective inhibition of the hydrolysis reaction. Ultimately, the hydrolysis mechanism of MgO·nAl2O3 was elucidated, where the boehmite protective layer (∼15 nm) formed on the particle surface after hydrolysis. This study provides a fundamental understanding of the surface properties and hydrolysis behavior of MgO·nAl2O3, which is of great significance for the preparation of spinel transparent ceramics using aqueous gel-casting. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Surface reactions

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In-situ surface self-reconstruction in ternary transition metal dichalcogenide nanorod arrays enables efficient electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2021年第4期30卷 10-16页

作者： Qiang Chen Yulu Fu Jialun Jin Wenjie Zang Xiong Liu Xiangyong Zhang Wenzhong Huang Zongkui Kou John Wang Liang Zhou Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Department of Materials Science and Engineering National University of SingaporeSingapore 117574Singapore Foshan Xianhu Laboratory Foshan 528216GuangdongChina

Water splitting has received more and more attention because of its huge potential to generate clean and renewable *** highly active and durable oxygen evolution reaction(OER)catalysts play a decisive factor in achieving efficient water *** identification of authentic active origin under the service conditions can prompt a more reasonable design of catalysts together with well-confined micro-/nano-structures to boost the efficiency of water ***,Fe,Co,and Ni ternary transition metal dichalcogenide(FCND)nanorod arrays on Ni foam are purposely designed as an active and stable low-cost OER pre-catalyst for the electrolysis of water in alkaline *** optimized FCND catalyst demonstrated a lower overpotential than the binary and unary counterparts,and a 27-fold rise in kinetic current density at the overpotential of 300 m V compared to the nickel dichalcogenide *** spectra and other structural characterizations at different potentials reveal that the in-situ surface self-reconstruction from FCND to ternary transition metal oxyhydroxides(FCNOH)on catalyst surfaces initiated at about 1.5 V,which is identified as the origin of OER *** surface selfreconstruction towards FCNOH also enables excellent stability,without fading upon the test for 50 h.

关键词： Surface self-reconstruction Transition metal dichalcogenide Transition metal oxyhydroxide Oxygen evolution reaction Water splitting

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Ti-MOF single-crystals featuring an intracrystal macro-microporous hierarchy for catalytic oxidative desulfurization

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Chemical Communications 2023年第13期59卷 1801-1804页

作者： Yu, Shen Xiao, Yu Liu, Zhan Lyu, Jia-Min Wang, Yi-Long Hu, Zhi-Yi Li, Yu Sun, Ming-Hui Chen, Li-Hua Su, Bao-Lian Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Hubei Wuhan430070 China International School of Materials Science and Engineering Wuhan University of Technology Hubei Wuhan430070 China Nanostructure Research Center Wuhan University of Technology Hubei Wuhan430070 China School of Chemistry Chemical Engineering and Life Science Wuhan University of Technology Hubei Wuhan430070 China Laboratory of Inorganic Materials Chemistry University of Namur 61 rue de Bruxelles NamurB-5000 Belgium

For the first time, we demonstrate a Ti-MOF (Ti-metal organic framework) single-crystal featuring an intracrystal macro-microporous hierarchy (Hier-NTU-9) by a vapor-assisted polymer-templated method. This Hier-NTU-9 possesses macropores (100-1000 nm) derived from polymer templates and enhanced transport ability of bulky molecules, exhibiting almost double the desulfurization activity compared to the conventional NTU-9. © 2023 The Royal Society of Chemistry.

关键词： Microporosity

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Cost Effectivities Analysis of Perovskite Solar Cells: Will it Outperform Crystalline Silicon Ones?

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Nano-Micro Letters 2025年第09期 345-355页

作者： Yingming Liu Ziyang Zhang Tianhao Wu Wenxiang Xiang Zhenzhen Qin Xiangqian Shen Yong Peng Wenzhong Shen Yongfang Li Liyuan Han State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Materials Genome Institute Shanghai University Xinjiang Key Laboratory of Solid State Physics and Devices School of Physical Science and Technology Xinjiang University State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Institute of Solar Energy Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong University Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences

The commercialization of perovskite solar cells（PSCs） has garnered worldwide attention and many efforts were devoted on the improvement of efficiency and stability. Here,we estimated the cost effectivities of PSCs based on the current industrial condition. Through the analysis of current process, the manufacturing cost and the levelized cost of electricity（LCOE）of PSCs is estimated as 0.57 $ W-1and 18–22 US cents（kWh）-1, respectively, and we demonstrate the materials cost shares 70% of the total *** analysis indicates that the improve- ment of efficiency, yield and decrease in materials cost significantly reduce the cost of the modules. Analysis of the module cost and LCOE indicates that the PSCs have the potential to outperform the silicon solar cells in the condition of over 25% efficiency and 25-year lifetime in future. To achieve this target, it is essential to further refine the fabrication processes of each layer in the module, develop stable inorganic transport materials, and precisely control material formation and processing at the microscale and nanoscale to enhance charge transport.

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Microstructure evolution during hydrogen pre-sintering of (Tb0.7Lu0.3)2O3 transparent ceramics 17

Microstructure evolution during hydrogen pre-sintering of (T...

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17th National Conference on Laser technology and Optoelectronics

作者： Xin, Yu Xu, Tao Wang, Yaozhi Luo, Peng Zhao, Wenhai Kang, Bin Jing, Wei Mei, Bingchu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Institute of Chemical Materials China Academy of Engineering Physics Mianyang621900 China

ISBN: (纸本)9781510661097

(Tb0.7Lu0.3)2O3 transparent ceramics were prepared by hydrogen pre-sintering and hot isostatic pressing treatment. ZrO2 was added as sintering aid to restrain the abnormal grain growth. The microstructure evolution and linear shrinkage changes of the (Tb0.7Lu0.3)2O3 transparent ceramics in the range of 1400℃~1700℃ were investigated. It can be seen from the results that the linear shrinkage of ceramics increased nonlinearly with the increase of the sintering temperature. In the range of 1550℃~1600℃, the (Tb0.7Lu0.3)2O3 ceramics had a higher shrinkage rate. And the shrinkage rate slowed down when the temperature exceeded 1600℃. The samples prepared by 1550℃ hydrogen pre-sintering combined with 1550℃ hot isostatic pressing sintering showed good optical property. The average grain size was about 1.69μm and the highest transmittance reached 74.81% @1064 nm. © 2022 SPIE.

关键词： Hydrogen

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Integrating thin wall into block:A new scanning strategy for laser powder bed fusion of dense tungsten

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Journal of materials Science & technology 2022年第25期120卷 167-171页

作者： Zhengang Xiong Ji Zou Zhaoyang Deng Jinhan Chen Wei Liu Yuchi Fan Minshi Wang Xiaoqing Zhao Chunfeng Yu Dongdong Dong Wenyou Ma Weimin Wang Zhengyi Fu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Institute of New Materials Guangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Institute of Functional Materials Donghua University201620China School of Metallurgy and Materials University of BirminghamBeijing 100084China

Due to a combination of outstanding properties including high melting point,high density,low thermal expansion coefficient,low saturated vapor pressure and excellent thermal conductivity,tungsten(W)parts have been widely used as electrodes,heating elements,anti-scatter grids for Computed Tomography(CT)equipment,rocket nozzles and divertor materials for nuclear fusion[1].

关键词： powder thermal saturated

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Band convergence boosted high thermoelectric performance of Zintl compound Mg_(3)Sb_(2) achieved by biaxial strains

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Journal of Materiomics 2022年第5期8卷 1086-1094页

作者： Suiting Ning Shan Huang Ziye Zhang Ning Qi Man Jiang Zhiquan Chen Xinfeng Tang Hubei Nuclear Solid Physics Key Laboratory Department of PhysicsWuhan UniversityWuhan430072China Department of Nuclear Engineering and Technology School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan430073China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China

Mg_(3)Sb_(2) as a Zintl compound is a promising thermoelectric material with the intrinsically low lattice thermal conductivity and excellent n-type electrical properties,but its p-type electrical transport properties are ***,the thermoelectric performance of Mg_(3)Sb_(2) under the effect of biaxial strain is investigated by using first-principles method and Boltzmann transport *** application of biaxial strain enables tuning the band structure of Mg_(3)Sb_(2) in such a way that the band degeneracy of both the conduction band and valence band *** the biaxial strain increases,the Seebeck coefficient of ptype Mg_(3)Sb_(2) has a remarkable increase,leading to a significant improvement in power *** is mainly ascribed to the achievement of valence band orbital ***,the lattice thermal conductivity exhibits very slight biaxial strain dependence within the strain range considered in this work,which increases from 1.28 to 1.62 W m^(-1) K^(-1) at 300 ***,the highest ZT of p-type Mg_(3)Sb_(2) at 700 K can be up to 2.6 along the in-plane direction under-2.5%biaxial strain,which is almost three times that of the unstrained *** realization of high thermoelectric performance of p-type Mg_(3)Sb_(2) will promote its practical applications as thermoelectric generators.

关键词： Thermoelectric First-principles Crystal field splitting energy Band convergence

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Low-strain TiP_(2)O_(7) withthree-dimensionalionchannelsas long-life and high-rate anode material for Mg-ion batteries

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Interdisciplinary materials 2022年第1期1卷 140-147页

作者： Fangyu Xiong Yalong Jiang Li Cheng Ruohan Yu Shuangshuang Tan Chen Tang Chunli Zuo Qinyou An Yunlong Zhao Jean-Jacques Gaumet Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory FoshanChina Advanced Technology Institute University of SurreyGuildfordSurreyUK Laboratoire de Chimie et Physique:Approche Multi-echelles des Milieux Complexes Institut Jean BarriolUniversitede LorraineMetzFrance

Rechargeable magnesium batteries are identified as a promising next-generation energy storage system,but their development is hindered by the anode−electrolyte−cathode incompatibilities and passivation of magnesium metal *** avoid or alleviate these problems,the exploitation of alternative anode materials is a promising ***,we present titanium pyrophosphate(TiP_(2)O_(7))as anode materials for magnesium-ion batteries(MIBs)and investigate the effect of the crystal phase on its magnesium storage *** with the me-tastable layered TiP_(2)O_(7),the thermodynamically stable cubic TiP_(2)O_(7) displays a better rate capability of 72 mAh g^(−1) at 5000 mA g^(−1).Moreover,cubic TiP_(2)O_(7) exhibits excellent cycling stability with the capacity of 60 mAh g^(−1) after 5000 cycles at 1000 mA g^(−1),which are better than pre-viously reported Ti-based anode materials for *** situ X-ray diffraction technology confirms the single-phase magnesiumion inter-calation/deintercalation reaction mechanism of cubic TiP_(2)O_(7) with a low volume change of 3.2%.In addition,the density functional theory calcu-lation results demonstrate that three-dimensional magnesiumion diffu-sion can be allowed in cubic TiP_(2)O_(7) with a low migration energy barrier of 0.62 *** work demonstrates the promise of TiP_(2)O_(7) as high-rate and long-life anode materials for MIBs and may pave the way for further development of MIBs.

关键词： anode material intercalation low-strain Mg-ion battery TiP_(2)O_(7)

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Ultra-small platinum nanoparticles segregated by nickle sites for efficient ORR and HER processes

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Journal of Energy Chemistry 2022年第2期31卷 48-54页

作者： Lvhan Liang Huihui jin Huang Zhou Bingshuai Liu Chenxi Hu Ding Chen Jiawei Zhu Zhe Wang Hai-Wen Li Suli Liu Daping He Shichun Mu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryXianhu Hydrogen ValleyFoshan 528200GuangdongChina Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070HubeiChina Platform of Inter/Transdisciplinary Energy Research International Research Center for Hydrogen EnergyInternational Institute for Carbon-Neutral Energy ResearchYushu UniversityFukuoka 819-0395Japan Key Laboratory of Advanced Functional Materials of Nanjing Nanjing Xiaozhuang UniversityNanjing 211171JiangsuChina

In the electrochemical process,Pt nanoparticles(NPs)in Pt-based catalysts usually agglomerate due to Oswald ripening or lack of restraint,ultimately resulting in reduction of the active sites and catalytic *** to uniformly disperse and firmly fix Pt NPs on carbon matrix with suitable particle size for catalysis is still a big ***,to prevent the agglomeration and shedding of Pt NPs,Ni species is introduced and are evenly dispersed in the surface of carbon matrix in the form of Ni-N-C active sites(Ni ZIF-NC).The Ni sites can be used to anchor Pt NPs,and then effectively limit the further growth and agglomeration of Pt NPs during the reaction *** with commercial Pt/C catalyst,Pt@Ni ZIF-NC,with ultralow Pt loading(7 wt%)and ideal particle size(2.3 nm),not only increases the active center,but also promotes the catalysis kinetics,greatly improving the ORR and HER catalytic *** acidic conditions,its half-wave potential(0.902 V)is superior to commercial Pt/C(0.861 V),and the mass activity(0.38 A per mg Pt)at 0.9 V is 4.7 times that of Pt/C(0.08 A per mg Pt).Besides,it also shows outstanding HER *** 20 and 30 mV,its mass activity is even 2 and 6 times that of Pt/C,*** it is under ORR or HER conditions,it still shows excellent *** undoubtedly indicate the realization of dual-functional catalysts with low-Pt and high-efficiency properties.

关键词： Oxygen reduction reaction Hydrogen evolution reaction Zeolitic imidazolate frameworks Nickle site Pt nanoparticles

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